Porter, M. E. 1., & Porter, M. E. 1. (1980). Competitive strategy: Techniques for analyzing industries and competitors. New York, New York: Free Press.
Chicago Style CitationPorter, Michael E. 1947-, and Michael E. 1947- Porter. Competitive Strategy: Techniques for Analyzing Industries and Competitors. New York, New York: Free Press, 1980.
MLA CitationPorter, Michael E. 1947-, and Michael E. 1947- Porter. Competitive Strategy: Techniques for Analyzing Industries and Competitors. New York, New York: Free Press, 1980.
Warning: These citations may not always be 100% accurate.